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<div class="title">mutex_v1.h</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160; </div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="keyword">namespace </span>resumef</div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;{</div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;    <span class="keyword">namespace </span>detail</div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;    {</div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;        <span class="keyword">struct </span>mutex_impl;</div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;        typedef ::resumef::detail::_awaker&lt;mutex_impl&gt; mutex_awaker;</div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;        <span class="keyword">typedef</span> std::shared_ptr&lt;mutex_awaker&gt; mutex_awaker_ptr;</div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160; </div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;        <span class="keyword">struct </span>mutex_impl : <span class="keyword">public</span> std::enable_shared_from_this&lt;mutex_impl&gt;</div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;        {</div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;        <span class="keyword">private</span>:</div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;            <span class="comment">//typedef spinlock lock_type;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;            <span class="keyword">typedef</span> std::recursive_mutex lock_type;</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160; </div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;            std::list&lt;mutex_awaker_ptr&gt; _awakes;</div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;            mutex_awaker_ptr _owner;</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;            lock_type _lock;</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;        <span class="keyword">public</span>:</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;            mutex_impl();</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;            <span class="comment">//如果已经触发了awaker,则返回true</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;            <span class="keywordtype">bool</span> lock_(<span class="keyword">const</span> mutex_awaker_ptr&amp; awaker);</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;            <span class="keywordtype">bool</span> try_lock_(<span class="keyword">const</span> mutex_awaker_ptr&amp; awaker);</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;            <span class="keywordtype">void</span> unlock();</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;            <span class="keyword">template</span>&lt;<span class="keyword">class</span> callee_t, <span class="keyword">class</span> dummy_t = std::enable_if&lt;!std::is_same&lt;std::remove_cv_t&lt;callee_t&gt;, mutex_awaker_ptr&gt;::value&gt;&gt;</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;            decltype(<span class="keyword">auto</span>) lock(callee_t&amp;&amp; awaker, dummy_t* dummy_ = <span class="keywordtype">nullptr</span>)</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;            {</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;                (void)dummy_;</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;                <span class="keywordflow">return</span> lock_(std::make_shared&lt;mutex_awaker&gt;(std::forward&lt;callee_t&gt;(awaker)));</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;            }</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;        <span class="keyword">private</span>:</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;            mutex_impl(<span class="keyword">const</span> mutex_impl&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;            mutex_impl(mutex_impl&amp;&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;            mutex_impl&amp; operator = (<span class="keyword">const</span> mutex_impl&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;            mutex_impl&amp; operator = (mutex_impl&amp;&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;        };</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    }</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160; </div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="keyword">namespace </span>mutex_v1</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;{</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keyword">struct </span>mutex_t</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    {</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;        <span class="keyword">typedef</span> std::shared_ptr&lt;detail::mutex_impl&gt; lock_impl_ptr;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        <span class="keyword">typedef</span> std::weak_ptr&lt;detail::mutex_impl&gt; lock_impl_wptr;</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;        <span class="keyword">typedef</span> std::chrono::system_clock clock_type;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keyword">private</span>:</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        lock_impl_ptr _locker;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    <span class="keyword">public</span>:</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        mutex_t();</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160; </div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        <span class="keywordtype">void</span> unlock()<span class="keyword"> const</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="keyword">        </span>{</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            _locker-&gt;unlock();</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        }</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        future_t&lt;bool&gt; lock() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        <span class="keywordtype">bool</span> try_lock() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160; </div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="comment">        template&lt;class _Rep, class _Period&gt;</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">        awaitable_t&lt;bool&gt;</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="comment">            try_lock_for(const std::chrono::duration&lt;_Rep, _Period&gt; &amp; dt) const</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="comment">            return try_lock_for_(std::chrono::duration_cast&lt;clock_type::duration&gt;(dt));</span></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">        template&lt;class _Clock, class _Duration&gt;</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="comment">        awaitable_t&lt;bool&gt;</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment">            try_lock_until(const std::chrono::time_point&lt;_Clock, _Duration&gt; &amp; tp) const</span></div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="comment">            return try_lock_until_(std::chrono::time_point_cast&lt;clock_type::duration&gt;(tp));</span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">        */</span></div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160; </div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        mutex_t(<span class="keyword">const</span> mutex_t&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        mutex_t(mutex_t&amp;&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        mutex_t&amp; operator = (<span class="keyword">const</span> mutex_t&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        mutex_t&amp; operator = (mutex_t&amp;&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="keyword">private</span>:</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        <span class="keyword">inline</span> future_t&lt;bool&gt; try_lock_for_(<span class="keyword">const</span> clock_type::duration&amp; dt)<span class="keyword"> const</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="keyword">        </span>{</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;            <span class="keywordflow">return</span> try_lock_until_(clock_type::now() + dt);</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        }</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        future_t&lt;bool&gt; try_lock_until_(<span class="keyword">const</span> clock_type::time_point&amp; tp) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    };</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;}</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;}</div>
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